<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品分类</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图导航区域-->
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary" @click="showAddCateDialog"
            >添加分类</el-button
          >
        </el-col>
      </el-row>

      <!--表格-->
      <tree-table
        class="treeTable"
        :data="cateList"
        :columns="columns"
        :expand-type="false"
        :selection-type="false"
        show-index
        index-text="#"
        border
        :show-row-hover="false"
      >
        <!--是否有效-->
        <template slot="isok" slot-scope="scope">
          <i
            style="color:lightgreen"
            class="el-icon-success"
            v-if="scope.row.cat_deleted === false"
          ></i>
          <i style="color:red" class="el-icon-error" v-else></i>
        </template>
        <!--排序-->
        <template slot="order" slot-scope="scope">
          <el-tag size="mini" v-if="scope.row.cat_level == 0">一级</el-tag>
          <el-tag
            type="success"
            size="mini"
            v-else-if="scope.row.cat_level == 1"
            >二级</el-tag
          >
          <el-tag type="warning" size="mini" v-else>三级</el-tag>
        </template>
        <!--操作-->
        <template slot="opt" slot-scope="">
          <el-button type="primary" icon="el-icon-edit" size="mini"
            >编辑</el-button
          >
          <el-button type="danger" icon="el-icon-delete" size="mini"
            >删除</el-button
          >
        </template>
      </tree-table>
      <!--分页-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[3, 5, 10, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!--添加分类对话框-->
    <el-dialog
      title="添加分类"
      :visible.sync="addCateDialogVisible"
      width="50%"
      @close="addCateDialogClose"
    >
      <el-form
        :model="addCateFrom"
        :rules="addCateRules"
        ref="addCateFromRef"
        label-width="100px"
      >
        <el-form-item label="分类名称：" prop="cat_name">
          <el-input v-model="addCateFrom.cat_name"></el-input>
        </el-form-item>

        <el-form-item label="父级分类：">
          <el-cascader
            v-model="selectKeys"
            :options="parentCateList"
            expand-trigger="hover"
            :props="cascaderProps"
            @change="parentCateChanged"
            clearable
            change-on-select
            
          ></el-cascader>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addCateDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addCate"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    return {
      cateList: [],
      //查询条件
      queryInfo: {
        pagenum: 1,
        pagesize: 5
      },
      total: 0,
      //table指定列的定义
      columns: [
        {
          label: '分类名称',
          prop: 'cat_name'
        },
        {
          label: '是否有效',

          //当前列定义为模板类
          type: 'template',
          template: 'isok'
        },
        {
          label: '排序',

          //当前列定义为模板类
          type: 'template',
          template: 'order'
        },
        {
          label: '操作',

          //当前列定义为模板类
          type: 'template',
          template: 'opt',
          width: '200px'
        }
      ],
      addCateDialogVisible: false,
      addCateFrom: {
        cat_name: '',
        cat_pid: 0,
        cat_level: 0
      },

      addCateRules: {
        cat_name: [
          { required: true, message: '请输入分类名称', trigger: 'blur' }
        ]
      },
      parentCateList: [],
      selectKeys:[],
      cascaderProps:{
          value:'cat_id',
          label:'cat_name',
          children:"children"
      }
      
    }
  },
  created() {
    this.getCateList()
  },
  methods: {
    async getCateList() {
      let result = await new this.Request(
        this.Urls.m().getCate,
        this.queryInfo
      ).modeGet()
      console.log('商品数据', result.data)
      if (result.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      } else {
        this.cateList = result.data.result
        this.total = result.data.total
      }
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getCateList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getCateList()
    },
    showAddCateDialog() {
      this.getParentCateList()
      this.addCateDialogVisible = true
    },
    //获取腹肌分类的数据列表
    async getParentCateList() {
      let result = await new this.Request(this.Urls.m().getCate, {
        type: 2
      }).modeGet()
      if (result.meta.status !== 200) {
        return this.$message.error('获取父级分类数据失败')
      } else {
        this.parentCateList = result.data
        console.log("父级数据",this.parentCateList)
      }
    },
    parentCateChanged()
    {
        console.log(this.selectKeys);
        if(this.selectKeys.length>0)
        {
         this.addCateFrom.cat_pid= this.selectKeys[this.selectKeys.length-1]
         this.addCateFrom.cat_level =this.selectKeys.length
         return
        }else{
            this.addCateFrom.cat_pid= 0
         this.addCateFrom.cat_level =0
        }
    },
    addCateDialogClose()
    {
        this.$refs.addCateFromRef.resetFields();
        this.selectKeys=[];
        this.addCateFrom.cat_level=0;
        this.addCateFrom.cat_pid=0;
    },
    addCate()
    {
        this.$refs.addCateFromRef.validate(async valid=>{
            if(!valid)
            {
                return
            }else{
                 let result = await new this.Request(this.Urls.m().getCate,this.addCateFrom
      ).modePost();
     
                if(result.meta.status!=201)
                {
                    return this.$message.error("添加分类失败")
                }else{
                    this.$message.success("添加分类成功")
                    this.getCateList();
                    this.addCateDialogVisible=false
                }
            }
        })
    }
  }
}
</script>

<style lang="less" scoped>
.treeTable {
  margin-top: 15px;
}
.el-cascader{
   width: 100%; 
}
</style>
